Making a cheap cheap projector?

I know that it's possible to crack open a "oldish" laptop or even a new one and remove the shielding around the lcd itself and shine a special light through it that's bright enough where you essentially make a lcd projector. I have a old toshiba satellite 2520cds with specs like a 2mb vid card, 96mb of ram, 4 gig hd, and a 300mhz amd processor. It runs somewhat fast, even for windows xp that I installed on it and plan to upgrade the hd down the road, but I wonder, would I be able to do the same thing with this? The screen is an older lcd that has that "motion blur" effect to it, so would it be worth it? Is there some way I could connect this lcd to my video card on my pentium 2 I have that would allow me to actually watch movies?

Posted by Punkguyta 12 years ago  |  last reply 11 years ago


Is $15.00 "cheap"

I want to know: is $15.00 "cheap" enough, or not, please

Posted by coolz 10 years ago  |  last reply 10 years ago


cheap slingshot? Answered

Anyone know where i can get a godd lsingshot im looking along the lines of the barnett black widow?

Asked by sharlston 9 years ago  |  last reply 9 years ago


Cheap smartphone

Hi , i found a really cheap android smartphone here ... but im not sure is scam or not. http://www.funbookes.com/mysaga-c3-android-4-2-dual-core-smartphone-4-0-inch-wvga-capacitive-screen-wifi-gps-bluetooth-black-white.html Anybody here know about this brand or this phone?

Posted by docrivers 5 years ago  |  last reply 5 years ago


Cheap projects

I just recently joined Instructables, and I'm looking for cheap (not necessarily simple) projects that involve mechanics or making anything out of easily found materials. Something like LostRite's hidden blade or this Mechanical Hand. I'm in high school and don't yet have a job, so many of the projects i find are out of my budget. Thanks for any of your suggestions!

Posted by StayingClassy 6 years ago  |  last reply 5 years ago


Cheap equpiment?

Are there any decent, really inexpensive equipment of: metal/cnc lathes cnc mills by cheap i mean under 300 dollars each, even cheaper is better! they don't have to be really expensive, actually for the mill, I'm only looking for something that can mill like 4"x4"x2" or something like that. And for the lathe I'm looking for something that can mill like 3 inches in diameter and a foot long. Thanks!

Posted by guyfrom7up 9 years ago  |  last reply 9 years ago


Cheap Pcb? Answered

Is it possible to create a pcb with cheap common household items and if true what can i use? I already have blank pcb but i was wonder can i substitute the etcher and acetone with other materials. 

Asked by Kante Tech 7 years ago  |  last reply 7 years ago


Cheap Heatsinks

Does anyone need heatinks? If so I have some that I am willing to sell for a very reasonable price. I have them in many shapes and sizes just look at the pictures. Any that are pictured in pairs can be sold in pairs. I don't have a large amount of any type, but I have enough for your typicall electronics project that just needs a little extra cooling. These heatinks are salvaged but are still in good uncorroded condition. All come with screws. If you need more pictures or info on a certain one let me know. I accept secure payment through pay-pal. I prefer to ship to the continental US but if you are somewhere else we can work something out. Post or PM me if interested. Enjoy

Posted by nurdee1 7 years ago  |  last reply 7 years ago


cheap Legos? Answered

Where can I get cheap Legos they don't have to be sets

Asked by watts78 5 years ago  |  last reply 5 years ago


Cheap ideas

Looking for cheap ways to make something out of tension wire spool.

Posted by DUMB8 5 months ago  |  last reply 5 months ago


Cheap sites?

Could someone put together a guide or something to cheap sites. so that it would be easier for people to find what they want and dont need to spend so much time on google. if u know a some good ones that is

Asked by Qsam 7 years ago  |  last reply 7 years ago


Cheap microcontroller?

I'm looking for a cheap microcontroller that i can use to control at least 3 led's. All they have to do is flash very quickly at different speeds. I dont have any experience with microcontrollers but i do have limited programming knowledge. Suggestions?

Asked by robbienakata 10 years ago  |  last reply 7 years ago


Cheap accelerometer?

Hello all, I'm building a textile interface using LilyPad Arduino and accelerometers to catch the movement and acceleration of points on this interface. As I intend to use a relatively high number of accelerometers (5), I've been wandering if there is any DIY accelerometer, or any cheap solution to it (as I'm brazilian, lilypad's accelerometers have a pretty high cost) . Thanks,

Posted by lgguts 7 years ago  |  last reply 7 years ago


Cheap Electric Gokart??

Anyone know how to make one? I would like to know how to build an actual one. 2 passenger. Budget under 200

Asked by 10 years ago  |  last reply 9 years ago


Cheap DVD rack

Hello, I have been searching for a dvd rack storage system but all the nice wooden ones are in the range of £80 for the number of DVDs that I have (about 500). Could someone please tell me how I can make my own stylish one or where I can find something stylish buy cheap that is currently on the market? Thank you!

Posted by ShaunHill 10 years ago  |  last reply 10 years ago


good cheap microcontroller?

Does anybody know a good cheap microcontroller that has at least 5 outputs, programmable via usb, and a fast clock (1000 ticks/ second)

Asked by coleyy 7 years ago  |  last reply 7 years ago


Cheap LEDs in Bulk?

I use Light Emitting Diodes for nearly every project I make. I have been looking as my receipts for the last six months at Radioshack, and found that I've purchased over 400 LEDs, and I have none remaining. I obviously go through them quite quick. Therefore, I am looking for a reliable website that sells LEDs in bulk for cheap. It is, quite obviously, expensive to buy 20 packs of LEDs from Radioshack (I've spent nearly $100), so I'd like to buy in bulk (which usually results in lower prices). Thanks in advance!

Posted by freethetech 7 years ago  |  last reply 3 years ago


Good cheap camcorder? Answered

Hi there im looking for a cheap camcorder that is around 300$ give or take some for say... small vlogs and or to start filmmaking please respond thank you.

Asked by Sean_Voodoo 6 years ago  |  last reply 6 years ago


cheap LED sources

Hey everybody, I've been looking for a good source for cheap LEDs for a project I'm working on. I want to replace 14 different 60W halogen bulbs with home-built LED lights. The reason for home-built is that the halogens burn out like crazy, but the light fixture looks nice, and isn't going to be replaced. The halogens put out an estimated 500-700 lumens (from the google research I did)So.... I'm looking for the best deal for white leds per lumen. the best deal I've found so far is:http://www.phenoptix.co.uk/Ultra_Bright_White_SUPERFLUX_LEDs_3000mcd_p/whi-flux-3000.htmat .021cents/lumen from the brightness calculator http://led.linear1.org/lumen.wizbut considering the quantity I want.... there's not even enough room to fit those LEDs on the fixture (due to the large case size)or if I buy 1000 of them (about the quantity I'm looking for) I'd be getting a slightly better deal, but still coming in at $120, not to mention they still don't fit. The physical space for the leds is a cylinder with a diameter of about 30mm and a height of about 70mm. Any Ideas/suggestions for cheap white LEDs?Thanks!-Zaen

Posted by Zaen 10 years ago  |  last reply 9 years ago


Which cheap mobile?

Hi, I am interested in getting a 'smart' (ish) phone, wifi, java etc.. I have found two, and wondered, 1. Which one would you pick? (of the two below) 2. Why? 3. Do you know where to get any other cheap <$100 phones? http://www.dealextreme.com/details.dx/sku.31634 http://www.dealextreme.com/details.dx/sku.39625

Asked by JavaNut13 8 years ago  |  last reply 8 years ago


Testing a Cheap Multimeter

It's been years since I had an expensive meter. These days, I have meters in the $5 to $20 range. Usually they're accurate enough for my purposes, but what if I want to be really certain? Is there a way without a pricey meter to test em?  Perhaps calibrate the meter by checking v  coming out of a v regultor. Would that be accurate? Perhaps the 7805 regulator which is supposed to output 5v.  y?n? M?

Posted by Toga_Dan 4 years ago  |  last reply 4 years ago


Are there cheap Airsoft sites? Answered

Are there any airsoft sites similar to those jewelry sites where $400 things are sold for $20-$30? Furthermore, I'd like to ask if hobbytronusa is a trusted site.  I've heard things about sites similar, but wasn't sure if it was that one. Thanks.

Asked by bighead5454 6 years ago  |  last reply 6 years ago


Cheap Source Of Propane?

When I got a new can of propane, for my torch, it was $9. At wally world, it was $4. Then, when I went to get a can of cooking stove propane from the camping department (at wal-mart), I notice that the tank was $3. After getting home, I noticed that the threads were exactly the same, and that the torch head would screw onto the neck of the "camp propane" bottle. So, as anyone would do, I fired it up, and it worked! Of course, it would shut off it you tilted it too far, but what the heck! $3 for a can of propane. But then I thought "Why is this so cheap, and why haven't I heard of this before? Is ther something wrong with this? Will I blow myself up?!?!?! Anyway, I'm all for saving $2, or $6 (depending on where I go), so is this actually a reasonable way of saving money?So what I'm asking:-Is this way safe? I haven't fired it up since, in case it did something bad.-Why is it so cheap to but it that way, and so expensive to buy regular tanks?-Has anyone else done this?If anyone can help, it'd be appreciated.

Posted by John Smith 11 years ago  |  last reply 8 years ago


Cheap Compact tripod Answered

Ok, so I have asked a question like this before, but I never did get a compact tripod, and i am going on a trip in a few weeks and could really use the tripod. So I'm going to ask this again, but a little differently I need a tripod, preferably; Less then 16" when folded. I'd very much like 14" or even 12" if possible Extends to 50" minimum. Preferably >52" Costs less then $50, around $35 Weight is not really an issue, but lightness helps :) I am going to be sticking it in like the waterbottle holder on a bag- maybe a clip or something so i could hook it to the strap Stability is not a huge issue, as I am only putting an FZ100 on it (19.9 oz), so it doesnt need to support a DSLR, just a heavier P&S-; I do plan on some longer exposure shots however I think thats it... I do feel kind of sorry asking this question, but I really dont have the time or resources to find this completely on my own, and I am asking for a pretty strict set of rules. Thank you all so much in advance- Sincerely, A907

Asked by astroboy907 7 years ago  |  last reply 7 years ago


Cheap digital DVR?

Can anyone tell me how to turn an old computer into a DVR?   I'd have to do it on the cheap.

Asked by Hubiewan 7 years ago  |  last reply 6 years ago


Large cheap breadboards?

I need some large breadboards for free or very cheap. Is there a company that gives free samples, or someone here who has some they don't want? I also need a way to cut them.

Asked by XOIIO 9 years ago  |  last reply 9 years ago


Cheap PIC microcontroller?

What is the cheapest PIC microcontroller with an analog input(a2d capability) and a few digital outputs?? and how much does it cost?? Thanks!

Asked by Chris414 6 years ago  |  last reply 6 years ago


Cheap Jet Engine.

What Jet engine can I build for $50-$200 in price? And that is small? it could be any type of jet engine, I just want to start building one.

Posted by koolsk8ter111 10 years ago  |  last reply 10 years ago


Cheap Christmas presents

Hey.... any ideas for christmas presents that aren't for your close friends... (parents of b/f, b/f's frieds... etc.) I need some crafty cute inexpensive ideas.

Posted by hethlee 12 years ago  |  last reply 12 years ago


Cheap phono preamp? Answered

Hi, I have a record player which I would really like to play through my home entertainment system. So I need a phono preamp to run it through. Does anyone have instructions on how I could make one or where I can get one really cheap?

Asked by David97 5 years ago  |  last reply 5 years ago


Need a cheap Multimeter?

Anyone in need of a cheap multimeter should click this link, print it out and get thee to harbor freight, where they honor the online price. It's their $40 multimeter on sale for $20, Has 30 function inc. freq. to 20kHz and temp to 1000 celsius. I've several of their $3 ones so i couldn't resist this one at this price.

Posted by Tool Using Animal 11 years ago  |  last reply 11 years ago


Underwater Photography on the cheap

I'm trying to 3D print reliable underwater camera enclosures. Here's where I'm documenting my progress: https://www.instructables.com/id/3D-Printed-Underwater-Camera/ What do you guys think? (first post ever :D )

Posted by MoonLanding 4 years ago


Cheap casting compound?

I´m on a budget and looking for a compound that can either be poured into a mould like plaster or is at least very soft and hardens in a short time without massive shrinking. (low temperature melting metals -> too heavy, plaster -> not rigid and hard enough, epoxy -> too expensive)

Asked by Fypsigon 8 years ago  |  last reply 8 years ago


Microbial instructable on the cheap

I'm interested in this instructable on isolating plastic degrading bacteria but the author doesn't appear to be active at the moment.I have no experience in this area. Any ideas on if/how could perform a valid experiment on the cheap? The only two prohibitively expensive items seem to be an autoclave (I'm assuming I could use a microwave or pressure cooker) and the Hass Broth: The solution used to feed the bacteria containing all their required elements except carbon, which they get from the plastic.Would it still be a viable experiment if I gave the microbes a banana peel or something and hope they're still hungry for plastic? Also can I get away with using a cheap milligram scale?I know this isn't a typical type of question but any help would be appreciated. Thanks!

Asked by Refinity 10 months ago  |  last reply 10 months ago


Cheap IR illuminator

I have been wanting to make night vision for a while and I get the question. How do I make an IR illuminator? Well I can buy 15 long range IR LEDS or I could buy a pre-built one for under $20. I have searched everywhere and still can't find what i'm looking for.

Posted by ry25920 11 years ago  |  last reply 7 years ago


Cheap colorless oil?

I like making these snow globe thingies, or just oil and glitter in a bottle. They fall slower when you use oil rather than just plain water, and I saw someone recommend baby oil. However, its a bit expensive just for this use, especially the colorless one. So I'm looking for any type of oil I can use for this project, that is cheaper than baby oil. As long as its clear/colorless.

Posted by Mikki G.W 3 years ago  |  last reply 3 years ago


cheap hammock stands

I want to make a relatively small hammock stand no more than 6 to 7 feet in length for my dorm room. It should also be able to collapse easy for storage purposes. done any one have any plans that would allow me to do that? i was thinking about building it out of 1-11/4 PVC but that might be too flexible and break. ( i weigh around 170 lbs). thx guys

Posted by srikar06 11 years ago  |  last reply 8 years ago


Aluminum casting on the cheap?

For my woodshop class I am making a cane/"pimpstick" and I am making a custom head for it. I want to cast it in aluminum using the lost wax technique. would normal plaster of paris be a good material to use for the mold? the peice is about 3 cubic inches. I was thinking about having two "fires" one to heat my aluminum and another to heat  the mold so it doesnt shatter. Is that workable? P.S. It would be a one use thing so no need for anything expensive. I have literally 10 dollars to spend on this. Thankyou,   bud

Asked by budhaztm 5 years ago  |  last reply 5 years ago


Cheap calculator hack

I put together a Solarbiotics Magbot Pendulum and it has a period of one second. I measured this by using a stopwatch and counting the swings for five minutes. . What I would like to do is count the number of times it swings back and forth over an extended period of time, for example 24 hours.   I came across an article showing how to use a cheap calculator to count the number of turns a shaft makes. A cam attached to the shaft presses the "+" key each time the shaft turns one full turn. to use it, you clear the calculator and press the "1" button. Then every turn the cam presses the "+" button and 1 is added to the sum being displayed. Every cycle of the pendulum causes the LED to flash (pulse)  once. I'd like to use these pulses to do the electronic equivalent of pressing the "+" button.  It might be possible to count these pulses using electronic circuitry (decade counters) but electronic calculators only cost about a dollar of two and I'd like to give that a try. Any suggestions would be appreciated.

Posted by dickb24 5 years ago  |  last reply 5 years ago


Cheap calculator hacking

I put together a Solarbiotics Magbot Pendulum and it has a period of one second. I measured this by using a stopwatch and counting the swings for five minutes. . What I would like to do is count the number of times it swings back and forth over an extended period of time, for example 24 hours.   I came across an article showing how to use a cheap calculator to count the number of turns a shaft makes. A cam attached to the shaft presses the "+" key each time the shaft turns one full turn. to use it, you clear the calculator and press the "1" button. Then every turn the cam presses the "+" button and 1 is added to the sum being displayed. Every cycle of the pendulum causes the LED to flash (pulse)  once. I'd like to use these pulses to do the electronic equivalent of pressing the "+" button.  It might be possible to count these pulses using electronic circuitry (decade counters) but electronic calculators only cost about a dollar of two and I'd like to give that a try. Any suggestions would be appreciated.

Posted by koyescha 5 years ago  |  last reply 5 years ago


Cheap plexiglass alternative

So i was going to make a desk. I was gonna make it about 2x3 and make the top out of two pieces of plexiglass, with about a 1 inch hollow area between them. I was gonna put some lights in that area. However, Plexiglass is costing a bit more than i want to spend. so I found this: http://www.homedepot.com/h_d1/N-5yc1v/R-202653810/h_d2/ProductDisplay?langId=-1&storeId;=10051&catalogId;=10053 Its ALOT cheaper. However, can it support a decent amount of weight probably? No ones gonna be sitting on the desk or anything. I would say NEVER more than 50 pounds on it, but 25 is probably gonna be the maximum, and not even that most of the time. (just gonna have my laptop and stuff on it, maybe some textbooks). And im assuming a blue light LED would shine through it fine..I kind of want the frosted look (would sand it down a little bit to get rid of the "bubbles") to give it an effect similar to the lights in this: https://www.instructables.com/id/LED-Glass-Desk/ except without the notifications and stuff.

Posted by abkarch 7 years ago  |  last reply 4 years ago


Headlight Restoration on the cheap.

How to restore your dull plastic headlamps to like new, for about $4.00 (if your lamps are dirty on the inside, that is a whole other instructable): Step 1 - Wash the headlamps with common dish soap and allow to dry thoroughly, this will remove the dirt and oils from the lamp. Step 2 - Using regular rubbing compound or silver polish (I used Silvo brand silver polish (about $4.00 a can here in Canada), it may work with copper polish as well) Apply a small amount of compound or polish using a soft cotton cloth (an old t-shirt or sheet cut into manageable size) gently rub the lamp in a circular motion (the amount of pressure is determined by the severity of the dullness, you may need to repeat the procedure more than once) allow the polish or rubbing compound to dry to a haze, usually by the time your done both lamps the first one will be ready to perform the next step. Step 3 - Using a clean dry cotton cloth buff the lens to remove all of the haze, if the lamp still looks dull repeat step 2. Step 4 - Once you are satisfied that the lenses are as polished as they will get, wax both lamps with a high quality auto wax, (a wax containing carnuba is the best) Mother's or Maguires works great. The wax will prevent bugs, dust and dirt from sticking to the lamp and it will retain it's clarity for a long time, if the lamp starts to look dull simply apply a new coat of wax. Step 5 - Stand back and admire your newly restored headlamps - you will be amazed at how much further you can see at night. *The attached photo is of my headlamp on my 1998 Suzuki Esteem - The before picture is from another 1998 Suzuki Esteem, my lamps were almost as bad as the one pictured here.

Posted by DELETED_Silent Ninja Bunny 6 years ago  |  last reply 6 years ago


Needle valve on the cheap?

I need a needle valve or similar to adjust some pressure with more or less precision. Problems I am facing with commercial solutions at the moment: Needs to withstand about 300psi max pressure, must survive contionous exposure to concentrated ammonia vapour. I already wasted too much money on stainless steel valves claiming to be chemical proof and capable of 6000psi only to find out they use seals that turn to goo in the ammonia vapour and fail. And since the stuff is not really healthy, not easy to get, I would prefer something safer. Real problem is also that the thing should be able to allow for good flow rates when opened fully. Modes of operation: During the active cycle ammonia vapour needs to pass through an opening as big as possible while after that the flow must be shut off. The reverse cycle needs to be adjustable from closed to fully open with great detail to control the flow rate. Current ways to compensate: With a ball valves and extra piping I could seperate the two cycles so I won't have to bother with tiny openings but I would prefer to use only a single connection. With a bypass around the needle valve this could be accomplished better but still looks ugly. Materials out of the question: Copper, brass, normal seals based on rubber, nitrile or similar. Questions: I know fully sealed in.line valves exist for LPG system and similar. Are any of these magnetic valves available for the use with ammonia? And if so: Can they be operated with a neodymium magnet instead of the coil? Even stainless steel valves rated for chemical use and high pressure fail quickly on the seals. Is there anything available that does not use soft seals but for example aluminium instead? Thinking spray pump here... One way ball valve systems like used in simple spray pumps are a great thing. With some aluminium tubing I was able to make a simple valve that with some more attention to detail might even work. But of course there no other way of moving the ball then to use a magnet and with sufficient back pressure even neodymium ones fail to get the ball in the open position and keep it there. Now getting this combine with a needle... If, instead of the ball, a magnet in a teflon shell is used on a spindle I could spin a magnet around the outside to turn the valve with great precision. Has anyone already designed such a thing or would I have to start from scratch here?

Asked by Downunder35m 2 years ago  |  last reply 2 years ago


Tis the season (for cheap LEDs)

It's a good time (in the USA) to buy holiday lights with LEDs. To disassemble, and retarget, of course. Discount stores are a great place to start.Here's a string of 70 brand-new white LEDs I bought last week. Cost: $4 USD.

Posted by gmoon 11 years ago  |  last reply 11 years ago


how to make a cheap skateboard?

Asked by 10 years ago  |  last reply 8 years ago


Links to cheap jewelry webshops???

Please, send me weblinks to cheap webshops for jewelry. I really love making my own jewelry but I can't find any cheap stores. By sending the links, you actually support me in making more jewelry instructables :) An example of a necklace I have made: https://www.instructables.com/id/mulicoloured-pendant/

Posted by emilyvanleemput 6 years ago  |  last reply 4 years ago


Easy/Cheap Heating Element?

Is there any way I could make a DIY heating element? Or, if not, is there anywhere I get get one on the cheap?

Asked by LiquidLightning 8 years ago  |  last reply 6 years ago


Cheap LED's in your backyard

I was reading another post from last year and got the idea to go to walmart and check it out.  Sure enough I found LED's on sale (after christmas sale).  I figured I would have to buy strings of them, but they had the replacement LED's on sale at 37 cents for a 4 pack.   After tax it comes out to just under 10 cents each, which isnt as cheap as you can buy them from online suppliers, but its a lot less expensive than paying radio shack 80-1.25 cents apiece!   I got a bunch of white and colored (Red, Blue, Yellow, Green).   I think I bought around 60 packages of them (240 LEDS).   I'm going to go back tomorrow and see if they will give me even more of a discount if I buy them all!  They are easy to remove, just unbend the leads and pull them out!   Now I have to figure out what the voltage and amperage is, since it doesnt list it on the packs.

Posted by pennsteve 9 years ago


Cheap vision system for a robot Answered

I need to make a cheap vision system for a robot (low cost is one of the main points of the robot).  I have seen some, but most require a computer on the robot, and if they don't, they are expensive and bulky.  Is there a way to modify a webcam to get it to work?  Or is there any other ways?

Asked by JaredsProjects 9 years ago  |  last reply 9 years ago


Cheap Eyeglasses - No, it isn't SPAM

Ok, first off, this isn't SPAM - I'm not advertising, just trying to figure something out about this company.Zenni OpticalThey sell glasses starting from $8! Glasses from a local glasses retailer cost around $120, at least! How can they afford to go down that low, compared to other stores? Is it their method of production, like they use different, cheaper materials? I've order 2 pairs off of their site, one regular, one sunglasses. I'll be awaiting the results. Still, it's crazy how low they can go, or how overpriced local stores are.

Posted by Bran 11 years ago  |  last reply 7 years ago